Zareh John Sinanyan (Armenian: Զարեհ Սինանյան, born December 4, 1973) is an American and Armenian politician currently serving as the High Commissioner of Diaspora Affairs of Armenia. He is a former member of the city council of Glendale, California and twice served as the city's mayor. As a city councilman, he held posts in various commissions, including Parks, Recreation and Community Service, and the Community Development Block Grant Advisory Committee.